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    <script>
        let music =new Object();
        music.name='周杰伦';
        music.song='借口';
        music.words='就算是我不懂，能不能原谅我';
        music.sing=function (){
            console.log('翻着我们的照片，想念若隐若现');
        }
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            console.log(music[key]);
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